CVE-2026-117507

a2aproject a2a-java TaskManager.saveTaskEvent race condition

CVSS score

5.3

EPSS probability

—

Risk score

0.5

Published

1 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-117507: Race Condition Vulnerability in a2aproject a2a-java

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

A security vulnerability has been detected in a2aproject a2a-java up to 1.2.0.Final affecting the TaskManager.saveTaskEvent function. This vulnerability involves a race condition and can be initiated remotely.

Why does it matter?

This vulnerability allows remote attackers to trigger integrity and availability impacts. Upgrading the affected component is necessary to mitigate the issue.

What should be done?

Upgrade to version 1.3.0.Final
Update the affected component
Review vendor advisory and patch references

Chain of evidence and sources2 verified claims

a2aproject a2a-java sürümlerinde 1.2.0.Final dahil olmak üzere TaskManager.saveTaskEvent fonksiyonunda race condition zafiyeti bulunmaktadır.

S0 · daybreach-canonical S1 · cvelist

Söz konusu zafiyet 1.3.0.Final sürümüne yükseltilerek giderilebilir ve yama tanımlayıcısı 6b8e1e085c35e970ef0048901cd25850e4791ec2 şeklindedir.

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

A security vulnerability has been detected in a2aproject a2a-java up to 1.2.0.Final. This impacts the function TaskManager.saveTaskEvent. The manipulation leads to race condition. The attack may be initiated remotely. Upgrading to version 1.3.0.Final will fix this issue. The identifier of the patch is 6b8e1e085c35e970ef0048901cd25850e4791ec2. The affected component should be upgraded.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

CWE: CWE-362

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-117507 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	a2aproject	a2a-java	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
5.5	CVSS V2	—	AV:N/AC:L/Au:S/C:N/I:P/A:P	NVD
5.5	CVSS V2_0	—	AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:OF/RC:C	CVE CNA
5.4	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L	NVD
5.4	CVSS V3_1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C	CVE CNA
5.4	CVSS V3_0	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C	CVE CNA
5.3	CVSS V40	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD
5.3	CVSS V4_0	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

6 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source

cvelist

CNA çözüm referansı

Open source

cvelist

CNA çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

reference

Yama veya çözüm referansı

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-117507 is associated with the following CWEs:

CWE-362: Common Weakness Enumeration Entry CWE-362

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-117507 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

VDB-427074 | a2aproject a2a-java TaskManager.saveTaskEvent race conditionvendor-advisory VDB-427074 | CTI Indicators (IOB, IOC, IOA)vendor-advisory CVE-2026-117507 | CVE Analysis and Reportvendor-advisory Submit #1015060 | a2aproject a2a-java ≤ 1.2.0.Final CWE-362vendor-advisory https://github.com/a2aproject/a2a-java/pull/1045patch https://github.com/a2aproject/a2a-java/commit/6b8e1e085c35e970ef0048901cd25850e4791ec2patch https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Finalpatch https://github.com/a2aproject/a2a-java/vendor-advisory

CVSS Vector Radar Chart

5.3 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)Low

Yama doğrulandı

6 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

a2aproject

Weakness Type (CWE & CAPEC)

CWE-362

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a2aproject a2a-java TaskManager.saveTaskEvent race condition

Impact on My Inventory

Vulnerability description

DayBreach AI Explanation

Short explanation

What should be done?

IMPACT: Affected Products and Software

Affected Products

RED HAT CSAF/VEX: Product Impact Check

SCORING: CVSS from Multiple Sources

CVSS Scores

Patch and Remediation Guide

Solution & Remediation Advisory

Public exploit and active exploitation status

Verified exploit intelligence

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

Common Attack Pattern Enumeration and Classification (CAPEC)

Attack Vector and Accessibility

Official Sources and Advisories

CVSS Vector Radar Chart

Vulnerability Scoring Details

Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

Get this vulnerability through the API

DayBreach

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